Casio WSD-F20A vs. Michael Kors Grayson vs. Fitbit Flex vs. Polar Loop vs. Fitbit Versa 2 vs. Michael Kors Grayson

 
WSD-F20A
Grayson
Flex
Loop
Versa 2
Grayson
 CasioWSD-F20ARemove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowPolarLoopRemove Buy NowFitbitVersa 2Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$399$350$100$100$199$350
Release201820182013201320192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day24 hours5 days5 days5 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320453 x 454NANA300 x 300453x454
Size1.32 inches1.39 inchesNANA1.34 inches1.39 inches
TouchNA
TypeLCDAMOLEDLEDLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM1 ATM2 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSAndroid WearNANABuild-inAndroid Wear
Apps
Music

All Wearables